package com.yh.cart.vo;

import lombok.Data;

import java.math.BigDecimal;
import java.util.List;

/**
 * 购物车
 */
public class Cart {
    List<CartItem> items;
    //商品数量
    private Integer countNum;
    //商品类型种数
    private  Integer countType;
    //商品总价
    private BigDecimal totalAmount;
    //减免价格
    private BigDecimal reduce=new BigDecimal("0.00");


    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    public Integer getCountNum() {
        //计算商品总量
        int count=0;
        if(items!=null&&items.size()>0){
            for (CartItem item : items) {
                if(item.getCheck()){
                    count+=item.getCount();
                }
            }
        }
        return count;
    }

    public Integer getCountType() {
        return items.size();
    }

    public BigDecimal getTotalAmount() {
        BigDecimal amount=new BigDecimal("0");
        //1.计算购物项总价
        if(items!=null&&items.size()>0) {
            for (CartItem item : items) {
                if(item.getCheck()) {
                    BigDecimal totalPrice = item.getTotalPrice();
                    amount = amount.add(totalPrice);
                }
            }
        }
        //2.减去优惠总价
        BigDecimal subtract = amount.subtract(getReduce());
        this.totalAmount=subtract;
        return subtract;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
